http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
being an attempt to explain the former changes of the earth's surface, by reference to causes now in operation
3 volumes : frontispiece (2 color) illustrations, maps (part folded) diagrams ; 21.5 cm.
"The author has found it impossible to compress into two volumes, according to his original plan, the wide range of subjects which must be discussed ... it will therefore be necessary to extend the 'Principles of Geology' to three volumes." volume 2, preface.
Bound in calf, stamped in gold; red and green leather labels on spines, stamped in gold; all edges marbled; marbled endpapers.